4 2 Sing, a famous boy band, decides to be crime fighters and challenge Big Hero 6 to a superhero-off.
| Name | Type | Role | |
|---|---|---|---|
| Han-Yee Ling | Writer | ||
| Jan Hirota | Producer | ||
| Jae Park | Guest Star | Kwang-Sun and Ye Joon | |
| Jeff Bennett | Guest Star | Baron Von Steamer | |
| Diedrich Bader | Guest Star | Bluff Dunder | |
| Nichkhun | Guest Star | Dae and Hyun-Ki | |
| Nicholas 'Nick' Filippi | Executive Producer | ||
| Mark McCorkle | Executive Producer | ||
| Bob Schooley | Executive Producer | ||
| Trey Buongiorno | Director |